New
#1
Thanks Ghot, I saw that and peer what I found , I do not even need this as I am on 21H1 19043.906.???
The February 24, 2021 update for Windows 10, version 2004, Windows Server, version 2004, Windows 10, version 20H2, and Windows Server, version 20H2 includes cumulative reliability improvements in .NET Framework 3.5 and 4.8. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the Prerequsites and Restart requirement sections.
Quality and reliability improvements
CLR1
- Addresses an issue where the entire process would be torn down when a NullReferenceException propagated out of an exception filter.
- Addresses an issue with slowdowns that could occur when making large numbers of devirtualized calls into MarshalByRefObject-derived code.
WPF2
- Addresses an issue with lag responding to typing in TextBox, when spell-checking is enabled that was introduced in an update earlier this year.
- Addresses an issue with a leak of touch-related resources, including OS handles, when closing a window. The leak only occurs when a touch device is active, and only for windows whose HwndSource is created directly by the app.
- Addresses a crash when docking a window within Visual Studio, or, more generally, disposing an HwndSource whose RootVisual is null.
Winforms
- Addresses an issue in ComboBox drop down item bounding rectangle as exposed to the accessibility tools, where we did not take into account that some items might be scrolled out of view, we had always started counting items from the first visible one, and thus item rectangle location was incorrect.
- Implemented ScrollItemPattern (IScrollItemProvider (uiautomationcore.h) - Win32 apps | Microsoft Docs) for ComboBox drop down items.
1 Common Language Runtime (CLR)
2 Windows Presentation Foundation (WPF)
How to get this update
Install this update
Release Channel
Available
Next Step
Windows Update and Microsoft Update
Yes
To download and install this update, go to Settings > Update & Security > Windows Update, and then select Check for updates.
19043.906 has been installed on 5 of my computers and the 6th will get it a bit later, all are the RTM Versions. I have 2 IP Dev computers and no update for them. Seems that for some reason the RTM are getting early patch, not waiting until the usual Tuesday. Speculation would be they are close to a new Version Upgrade.
KB5000842 was what brought me to 19043.906 from .899. It was the only update in recent memory that defied my best efforts to install it.
After a week of failures and dwindling patience, I successfully reset my machine. The .NET framework KB4601554 was a breeze compared to this, a snap.